Dionne Marie "Dee" Collins CBE QPM (born 1965) is a British retired police officer, who served as Chief Constable of West Yorkshire Police from 2016 to 2019. She served a secondment from West Yorkshire Police to the College of Policing where she was Director for the 2019 Strategic Command Course. Due to ill health, having been previously treated for breast cancer, she stepped down as Chief Constable and retired from the police in April 2019.